The Dogtra GPS Fence is a customizable virtual fence pet containment system with no monthly fees. Use your phone to create custom boundaries around your property - no installation needed. Your dog learns where they can roam safely within your yard. When they test the boundaries, our unique Come Home Sequence kicks in with warnings and return tones to guide them back home. This collar focuses on boundary training without live tracking, giving you a containment system that works to guide them back.